All things related to multicast

[Bruce Curtis <>]

On Apr 3, 2007, at 1:07 PM, Nicholas J Humfrey wrote:

> Hi,
>
> The University of Southampton is connected to m6bone/Géant via a  
> tunnel. I am able to asmping and ssmping Stig's ssmping server in  
> Norway ok. I am unsure of the details of how m6bone is connected to  
> Internet 2?
>
>
> Using asmping to test multicast connectivity to Norway (using our  
> own embedded-RP):
> asmping -6 ff7e:140:2001:630:d0:f000:4321:1234 ssmping.uninett.no
>
> Using ssmping to test SSM connectivity to Norway:
> ssmping -6 ssmping.uninett.no
>
>
> We have an ssmping server on our network, are you able to ping it?
> ssmping -6 ssmping.ecs.soton.ac.uk
> asmping -6 ff7e:140:2001:630:d0:f000:4321:1234 ssmping.ecs.soton.ac.uk
>
>
> Anyone else had any success from Internet2?
>
>
> nick


  I see that I did get one multicast packet.  Also I see that state  
was built for the asmping group ff7e:140:2001:630:d0:f000:4321:1234.

  But state was not built for ff7e:140:2001:630:d0:f000:8000:1217.

asmping -6 ff7e:140:2001:630:d0:f000:4321:1234 ssmping.ecs.soton.ac.uk
asmping joined (S,G) = (*,ff7e:140:2001:630:d0:f000:4321:1234)
pinging 2001:630:d0:f104::de80 from 2001:4930:95::203:93ff:feda:c552
  unicast from 2001:630:d0:f104::de80, seq=1 dist=16 time=136.482 ms
  unicast from 2001:630:d0:f104::de80, seq=2 dist=16 time=136.547 ms
multicast from 2001:630:d0:f104::de80, seq=2 dist=12 time=284.441 ms
  unicast from 2001:630:d0:f104::de80, seq=3 dist=16 time=136.419 ms
  unicast from 2001:630:d0:f104::de80, seq=4 dist=16 time=136.311 ms
  unicast from 2001:630:d0:f104::de80, seq=5 dist=16 time=136.288 ms
  unicast from 2001:630:d0:f104::de80, seq=6 dist=16 time=136.911 ms
  unicast from 2001:630:d0:f104::de80, seq=7 dist=16 time=136.467 ms
  unicast from 2001:630:d0:f104::de80, seq=8 dist=16 time=136.350 ms
  unicast from 2001:630:d0:f104::de80, seq=9 dist=16 time=136.354 ms
  unicast from 2001:630:d0:f104::de80, seq=10 dist=16 time=136.486 ms
  unicast from 2001:630:d0:f104::de80, seq=11 dist=16 time=136.497 ms
  unicast from 2001:630:d0:f104::de80, seq=12 dist=16 time=136.549 ms
  unicast from 2001:630:d0:f104::de80, seq=13 dist=16 time=136.602 ms
  unicast from 2001:630:d0:f104::de80, seq=14 dist=16 time=136.484 ms
  unicast from 2001:630:d0:f104::de80, seq=15 dist=16 time=136.381 ms
  unicast from 2001:630:d0:f104::de80, seq=16 dist=16 time=136.599 ms
  unicast from 2001:630:d0:f104::de80, seq=17 dist=16 time=137.050 ms
  unicast from 2001:630:d0:f104::de80, seq=18 dist=16 time=136.161 ms
  unicast from 2001:630:d0:f104::de80, seq=19 dist=16 time=136.377 ms
  unicast from 2001:630:d0:f104::de80, seq=20 dist=16 time=137.038 ms


show ipv6 mroute ff7e:140:2001:630:d0:f000:4321:1234
Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group,
       C - Connected, L - Local, I - Received Source Specific Host  
Report,
       P - Pruned, R - RP-bit set, F - Register flag, T - SPT-bit set,
       J - Join SPT
Timers: Uptime/Expires
Interface state: Interface, State

(*, FF7E:140:2001:630:D0:F000:4321:1234), 00:00:47/never, RP  
2001:630:D0:F000::1, flags: SCJ
  Incoming interface: Vlan107
  RPF nbr: FE80::212:1EFF:FE08:C8DB
  Immediate Outgoing interface list:
    Vlan95, Forward, 00:00:47/never

(2001:630:D0:F104::DE80, FF7E:140:2001:630:D0:F000:4321:1234),  
00:00:46/00:02:43, flags: SJT
  Incoming interface: Vlan107
  RPF nbr: FE80::212:1EFF:FE08:C8DB
  Inherited Outgoing interface list:
    Vlan95, Forward, 00:00:47/never

core-a.ndsu#show ipv6 mroute ff7e:140:2001:630:d0:f000:4321:1234 count
IP Multicast Statistics
74 routes, 23 groups, 0.13 average sources per group
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits  
per second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)
Group: FF7E:140:2001:630:D0:F000:4321:1234
  RP-tree:
   RP Forwarding: 0/0/0/0, Other: 0/0/0
   LC Forwarding: 0/0/0/0, Other: 0/0/0
   HW Forwd:   0/0/0/0, Other: NA/NA/NA
  Source: 2001:630:D0:F104::DE80,
   RP Forwarding: 1/0/98/0, Other: 0/0/0
   LC Forwarding: 0/0/0/0, Other: 0/0/0
   HW Forwd:   0/0/0/0, Other: NA/NA/NA
  Tot. shown: Source count: 1, pkt count: 1
core-a.ndsu#show ipv6 mroute ff7e:140:2001:630:d0:f000:4321:1234 count
IP Multicast Statistics
74 routes, 23 groups, 0.13 average sources per group
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits  
per second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)
Group: FF7E:140:2001:630:D0:F000:4321:1234
  RP-tree:
   RP Forwarding: 0/0/0/0, Other: 0/0/0
   LC Forwarding: 0/0/0/0, Other: 0/0/0
   HW Forwd:   0/0/0/0, Other: NA/NA/NA
  Source: 2001:630:D0:F104::DE80,
   RP Forwarding: 1/0/98/0, Other: 0/0/0
   LC Forwarding: 0/0/0/0, Other: 0/0/0
   HW Forwd:   0/0/0/0, Other: NA/NA/NA
  Tot. shown: Source count: 1, pkt count: 1


show ipv6 mroute ff7e:140:2001:630:d0:f000:8000:1217
Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group,
       C - Connected, L - Local, I - Received Source Specific Host  
Report,
       P - Pruned, R - RP-bit set, F - Register flag, T - SPT-bit set,
       J - Join SPT
Timers: Uptime/Expires
Interface state: Interface, State

(*, FF7E:140:2001:630:D0:F000:8000:1217), 02:16:31/never, RP  
2001:630:D0:F000::1, flags: SCJ
  Incoming interface: Vlan107
  RPF nbr: FE80::212:1EFF:FE08:C8DB
  Immediate Outgoing interface list:
    Vlan95, Forward, 02:16:31/never



> On 3 Apr 2007, at 18:43, Bruce Curtis wrote:
>
> >   Have you made the IPv6 multicast streams available to Internet2?
> >
> >   I've tried to connect to ff7e:140:2001:630:d0:f000:8000:1217 but  
> > it doesn't work.
> >
> >   I have successfully viewed an IPv6 stream from the Vatican which  
> > also used enbedded RP.
> >
> >
> > On Apr 3, 2007, at 11:19 AM, Nicholas J Humfrey wrote:
> >
> > > Apologies for cross-posting.
> > >
> > >
> > > I have made three more of the Virgin Radio satellite streams  
> > > available on IPv4 and IPv6 multicast:
> > >
> > > - Virgin Radio Groove
> > > - Virgin Radio Classic Rock
> > > - Virgin Radio Xtreme
> > >
> > > More information is available at:
> > > http://www.multicast.org.uk/virginradio/
> > >
> > > They are all MPEG-1 Audio Layer-2 streams (payload 14) over RTP  
> > > on port 5004.
> > >
> > >
> > > Virgin Radio have also made some Windows Media Player multicast  
> > > streams available themselves:
> > >
> > > http://www.virginradio.co.uk/about_us/technology_services/multicast/
> > >
> > >
> > > Thanks,
> > >
> > > nick.
> >
> >
> > ---
> > Bruce Curtis                         
> >
> > Certified NetAnalyst II                701-231-8527
> > North Dakota State University


---
Bruce Curtis                         

Certified NetAnalyst II                701-231-8527
North Dakota State University